[1] CHU Vaudois, Lausanne Univ Hosp, Dept Visceral Surg, Lausanne, Switzerland
[2] Univ Lausanne UNIL, Fac Biol & Med, Lausanne, Switzerland
[3] CHU Clermont Ferrand, Biostat Unit, DRCI, Clermont Ferrand, France
[4] CHU St Etienne, Hosp Nord, Dept Digest & Oncol Surg, St Priest En Jarez, France
[5] Aix Marseille Univ, Timone Univ Hosp, APHM, Dept Digest Surg, Marseille, France
[6] CHU Lille, Dept Digest & Oncol Surg, Lille, France
[7] Univ Lille, CHU Lille, Canc Heterogene Plast & Resistance Therapies, CNRS,Inserm,UMR9020,U1277,CANTHER, Lille, France
[8] Estaing Univ Hosp, Dept Digest Surg & Liver Transplantat, Clermont Ferrand, France
[9] Clermont Auvergne Univ, Inserm, U1071, Clermont Ferrand, France
[10] Bordeaux Univ Hosp, Magellan Ctr, Dept Digest Surg, Eso Gastr Surg Unit, Pessac, France
[11] Bordeaux Segalen Univ, Fac Med, Bordeaux, France